gaigai

Team Members: David, Lakshya, John, Benedict, Aum and Yu Quan

Background:
Physical inactivity is a prevalent problem within the elderly and disabled population, with as much as 56% of adults with disabilities not engaging in physical exercise. This is due to a combination of their limited strength, fear of injury, lack of motivation, and lack of exercise equipment suited to their needs. This can lead to an increased risk of chronic diseases such as heart diseases and diabetes.

We identified daily commutes to and from locations such as shops as opportunities to encourage physical activity in the seniors and people with disabilities. Previous research has demonstrated that cycling improves the physical and mental health of seniors and person with disabilities.

(Problem Statement Owners: SG Enable, Engineering Good, Gordon)

Problem Statement:
How might we design an inclusive, comfortable bicycle trailer that allows active physical participation of the cycling process for seniors and People With Disabilities (PWD) to improve their physical and mental health in parks and on pavements?

Our Solution:
Our team have designed gaigai, a bike trailer. Here are the features:

  • Chassis is created using Fusion360's generative design. Afterwhich, to save cost and improve manufacturability, we use a novel generative-to-parametric approach to simplify the original model.
  • Can withstand up to 150kg, with a high payload-to-weight ratio of 18:1
  • Varying pedal distance to cater to people of different height
  • Automated gear shifting and braking to moderate the cycling speed and ensure both cyclist and the seniors/PWDs is in sync

Main Materials: Alumnium, CF-Nylon, Epoxy

Contribution: Design, implement and code out all the electronic system required for the product

Skills Involved (Individual): Fusion360, PCB design(KiCAD), Arduino, 3D Printing, Circuit Design, Design Thinking

Photos/Videos:
Initial test of electronics

Testing of automatic braking and gear shift using load cell

Last few test of electronics

PCB Design and Manufacturing

Final Prototype

Group Photos